IM-8704.4
AMERICAN METER Series 1200
Service Regulators
Models 1203, 1203B, 1213B, 1243B & 1283B
operating Operating Instructions Manual
Model 1213B-180
Model 1213B-90
Model 1243B
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Measurement Engineers Since 1836
Series 1200 Service Regulators
2.
1200 General Information:
The 1200 Regulators are available as Non-Relieving and Full
Capacity Internal Relief Models. Series 1200 Regulators are
also available with overpressure shut-off protection.
Available 180˚ valve body sizes: 1/2" x 1/2", 3/4" x 3/4",
3/4" x 1" and 1" x 1" NPT or BSP-TR.
Also available 90˚ valve body sizes: 1/2" x 1/2", 1/2" x 3/4",
1/2" x 1", 3/4" x 3/4", 3/4" x 1" and 1" x 1" NPT or BSP-TR.
Maximum inlet pressure, normal service (P1): Depending on
orifice size, up to 125 PSIG.
Maximum outlet set pressure, normal service (P2): Depending
on spring selection, up to 5 PSIG.
Orifice Size
*
Orifice Sizes
Part Number
Standard
w/ OPSO
5/16"
72494P022
72751P013
1/4"
72494P021
72751P012
3/16"
72494P020
72751P011
1/8"
72494P019
N/A
1/8" x 3/16"
72494P030
72751P020
*See brochure SB-8505 for maximum inlet recommendations
and capacity performance for each orifice size.
Pressure Springs
Outlet Pressure
Range
Part Number
1203B & 1283B
Part Number
1213B & 1243B
5" to 9" W.C.
70017P002
Black-Orange
70017P003
Orange
6" to 12" W.C.
70017P065
Black-Red
70017P065
Black-Red
9" to 15" W.C.
70017P004
Black-Green
70017P004
Black-Green
1/2" to 1 PSIG
70017P044
Yellow
N/A
1 to 2 1/2 PSIG
70017P040
Black-Blue
70017P040 *
Black-Blue
2 1/2 to 5 PSIG
70017P041
Red-Orange
70017P041
Red-Orange
3.
4.
5.
6.
7.
8.
Installation:
(Numbers in parentheses refer to figure 1, page 3.)
Warning:
Inside Installation:
Will require a vent line of sufficient diameter to carry gas vented by the
regulator to a safe outside location away from any opening in the
building. For all sizes of regulators, a 3/4" vent is provided for a vent
line. Do not thread a pipe into the vent more than 7 turns so as not to
block the vent flapper.
Outside Installation:
Will require that care be taken to prevent vent opening from freezing
closed or becoming blocked or permitting water to enter from any
cause. Particular consideration should be given to sites where flooding,
snow, or freezing rain may be experienced. The vent or vent line port
should point vertically downward and overhead protection should be
used where necessary.
1.
2.
3.
* 2 PSIG Maximum
Preparations:
Caution:
Do not connect the inlet of the regulator to a normal pressure source
higher than that recommended. Never connect the regulator outlet to
the source of pressure. Observe the flow direction arrow on the valve
body. If inlet pressure can exceed the maximum regulator outlet
pressure rating, some form of overpressure protection in addition to
internal relief may be required. To prevent damage to the regulator and
possible personal injury, inlet and outlet pressures must not exceed the
regulator pressure rating stated on page 4.
1.
2
Install, operate, inspect and maintain the regulator as
outlined in the following instructions and in accordance
with your company's policies and applicable federal, state
and local codes and laws. Failure to follow these
instructions may result in damage to the regulator or
personal injury.
Check installation location for suitability. It is possible that
physical changes have been made to the building site
since the regulator and location were originally selected.
Examine regulator for shipping damage.
Check regulator and piping for foreign matter which may
have accumulated during shipment or handling.
Check seal plug information to determine if regulator is
suitable for intended service.
Suitable stop valve(s) should be installed and should be
conveniently located.
Filters are available from American Meter for applications
where pipeline contaminant’s are suspected to be present.
Regulators may be used at temperatures between -20˚ F
and +150˚ F (-30˚ C and +65˚ C).
4.
5.
6.
Remove all shipping plugs.
Use good piping practice. Be sure piping and regulators
are free of dirt, pipe dope and other debris. Apply pipe
dope to male threads only.
Install regulator. Make certain it is piped correctly with inlet
pipe connected to the inlet regulator connection and flow
is in the direction as indicated by arrow located on valve
body (19). The vent should be positioned to prevent entry
of water and debris. American Meter recommends that the
vent face downward. By removing the four bolts (5), the
diaphragm case (8) may be rotated in 90 degree
increments in relation to the valve body (19). Replace and
tighten the bolts (5). Inside Installations - A regulator
installed within a building should be located as near as
practical to the point of service line entrance.
Turn gas on slowly. If an outlet stop valve is used, it
should be open first. Do not overload the diaphragm with
a sudden surge of inlet pressure.
Assure that there are no leaks and all connections
are tight.
The 1200 Series regulator is preset at the factory with
the diaphragm in the horizontal position and should not
require any adjustment if installed in that position. The
outlet pressure may vary as much as 0.5" W.C. if the
regulator is installed in the vertical position. Should you
decide to adjust the set pressure, perform the following:
(a) Turn gas off and depressurize the system.
(b) Install outlet pressure gauge. Remove seal plug (14).
(c) Turn gas on slowly.
Series 1200 Service Regulators
(d) Establish a low flow rate - 45 to 55 SCFH.
(e) Turn pressure spring adjustment screw (9) clockwise
to increase outlet pressure or counterclockwise to
decrease outlet pressure.
(f) Establish the set pressure within the range limits of
the pressure spring used.
(g) To test for the regulator's ability to fully shut off (lockup), shut off all flow downstream of the regulator. At
lock-up, the outlet pressure will be somewhat higher
than the set pressure. However, if the pressure
continues to rise after 3 seconds, the regulator must
be repaired. Observe for 30 seconds.
(h) When the set pressure has been properly adjusted,
depressurize and remove gauge(s) and lines.
(i) Replace seal plug (14).
(j) Pressurize and check all connections for leaks.
5.
6.
7.
8.
Install new seal ring (2) in the diaphragm case groove.
Inspect unit for cleanliness and proper positioning of the
parts. Pay particular attention to the proper positioning of
the seal ring (2) in the groove.
Install the diaphragm case (8) on the valve body (19).
Make sure the vent is pointed downward. Replace and
tighten the valve body bolts (5).
Proceed to Steps 4, 5 and 6 of the installation instructions.
Caution:
Regulators are pressure control mechanisms having numerous moving
parts which can wear. In addition, regulator damage may occur from
external sources. For these reasons, the regulator should be periodically
inspected and checked for proper operation. The frequency of inspection
will depend on the severity of the service conditions and the requirements
of applicable local, state and federal codes and regulations.
Maintenance:
Inspection:
(Numbers in parentheses refer to figure 1.)
(Numbers in parentheses refer to figure 1.)
Inspection and maintenance of the 1200 Series regulator has
been simplified for practical reasons. Repair parts are offered
if maintenance of the regulator is required.
Inspection of the valve seat disc (1) and orifice valve (7) may
be performed in the field. Follow the procedure described
below. Care should be exercised to prevent foreign matter
from entering the regulator.
Procedure for Inspection of Valve Seat Disc and Orifice
1. Shut off gas supply and depressurize the regulator
system.
2. Remove four bolts (5) securing the diaphragm case (8) to
the valve body (19) and separate the diaphragm case
from the valve body.
3. Visually check the seating edge of the orifice (7). If it is
nicked or damaged, it should be replaced with a new
orifice to provide proper shutoff. See Maintenance
instructions for replacing the orifice.
4. Inspect the surface of the valve seat disc (1). If it is
scored or uneven replace it as outlined in the Maintenance
instructions.
14
9
18
6
1.
2.
3.
Carefully insert the tip of a knife along the edge of the
seat disc (1) and lift the seat disc out of the plunger (17).
Install a new seat disc (1) into the plunger (17), by
pressing into place. Make sure that the disc is pressed
completely into the plunger (17).
Proceed to Steps 5, 6, 7 and 8 of the Inspection
Instructions.
Caution:
Handling and Disposal
"As a knowledgeable user of American Meter’s products, we are sure
that you are aware that parts in the Company’s meters and regulators
contain or are coated with heavy metals such as cadmium, zinc, lead
and chromium. Obviously, therefore, repair or refurbishment of this
equipment should take into account the presence of these materials and
should comply with all state and federal requirements concerning
worker protection, proper disposal and safety, including protection
against exposure to dust and fumes."
Item
No.
Description
Item
No.
Description
1
Disc, Valve Seat
12
Lever
2
Seal Ring, Valve
Body
13
Pin, Lever
3
Diaphragm Assembly
14
Plug, Seal
4
Screw, Diaphragm
Case
15
Spring, Relief
Valve
5
Bolt, Valve Body
16
Guide, Valve
Plunger
6
Spring, Pressure
17
Plunger, Valve
7
Valve, Orifice
18
Assembly, Top
8
Diaphragm Case
19
Valve, Body
9
Screw, Pressure
Adjustment
20
Screw, Lever Pin
10
Stem
21
Screen, Vent
11
Nut, Relief Valve
21
11
4
15
17
Replacing Seat Disc:
5
7
16
19
3
8
20
10
1
2
13
12
Figure 1 (1213B Regulator)
3
Series 1200 Service Regulators
Replacing Orifice:
4.
(Numbers in parentheses refer to figure 1, page 3.)
5.
Caution:
6.
Regulators that have an orifice size change different than shown on the
seal plug or tag must have their set pressure reestablished. Mark new
orifice size and set pressure on the regulator seal plug or on its tag.
Remove the pressure spring (6). Install new pressure
spring.
Replace the pressure adjusting screw and turn adjusting
screw to about mid position.
Proceed to Steps 4, 5 and 6 in Installation Instructions.
Resetting The OPSO:
1.
2.
3.
4.
5.
6.
(For 1243B & 1283B only.)
(Numbers in parentheses refer to figure 2.)
Shut off gas supply and depressurize the regulator
system.
Remove four bolts (5) securing the diaphragm case (8) to
the valve body (19). Place the diaphragm case aside and
protect the seat disc from dirt particles.
Remove the orifice valve (7) with a 7/8" hex socket
wrench.
Sparingly apply Henkell G30 or Loctite "Stainless Steel
PST" thread sealant or equivalent (not supplied) to the
new orifice threads.
Carefully start the threads of the orifice into the valve body
and tighten to specification. Care must be taken to
prevent nicking the orifice.
Proceed to Steps 5, 6, 7 and 8 of the Inspection
Instructions.
1.
2.
3.
4.
5.
Shut off gas supply and depressurize the regulator system.
Unscrew the OPSO lower diaphragm case cap
(body plug) (1).
Pull back the knurled plunger (2) until the diaphragm
stem (3) repositions (an audible click).
Replace the OPSO diaphragm case cap (body plug) (1)
after examining the o-ring (4) for damage.
Proceed to Steps 4 and 5 in Installation instructions.
3
Replacing Pressure Spring:
2
(Numbers in parentheses refer to figure 1, page 3.)
Caution:
Regulators that have a pressure spring removed or replaced must have
their set pressure reestablished. If the pressure spring is different from
that shown on the seal plug or tag, mark spring range on the regulator
seal plug or on its tag, and cross out the old value.
4
1
Figure 2.
1.
2.
3.
Operation & Resetting The Jeavons USSA:
Shut off gas supply and depressurize the regulator
system.
Remove seal plug (14).
Unscrew pressure adjusting screw (9) with a 3/8"
screwdriver and remove the pressure adjusting screw
completely.
1.
For USSA operations on models 1253B and 1293B w/
Jeavons see brochure SB-8556.
Regulator Pressure Rating
125 PSIG = Maximum recommended inlet pressure for normal service. Maximum recommended pressure may vary with orifice size.
175 PSIG = Maximum inlet pressure for abnormal or emergency service, without causing damage to regulator case.
5 PSIG = Maximum outlet pressure for normal service.
10 PSIG = Maximum outlet pressure which can be contained by pressure carrying components (no flange leakage to atmosphere
except for normal relief action). If regulator is subjected to these conditions, it should be removed from service.
50 PSIG = Maximum outlet pressure for abnormal service without damage to internal components. If regulator is subjected to
these conditions, it should be removed from service.
Due to continuous development the information in this document is subject to change.
AMERICAN METER
300 Welsh Road, Building One Horsham, PA 19044-2234 USA Tel: (215) 830-1800 Fax: (215) 830-1890
CANADIAN METER
3037 Derry Road, West 4
Milton, Ontario L9T 2X6 Canada Tel: (905) 878-2361 Fax: (905) 878-5758
PB/5000/03-02
FP 03-91